F01/F02/F03 Products Family
F01 / F02 / F03 product family is fluxgate current sensor, including 3 series of high configuration models, with a total of 6 series × 24 products in 4 specifications.
・ with one series and four specifications, it can support the rated current of 6 ~ 50 a.
・ F01 / 02 / 03PxxxS05L, as a high configuration model, has enhanced surge current resistance and compact structure.
・ the high configuration model adopts the design compatible with the pins of the conventional model, and the circuit board layout can be universal.
| Series | Symbol | F01PxxxS05 | F01PxxxS05L | F02PxxxS05 | F02PxxxS05L | F03PxxxS05 | F03PxxxS05L |
| Supply voltage | Vcc | +5V | |||||
| Output voltage | Vo | +2.5V±0.625V | +2.5V or Vref_in ±0.625V | ||||
| Bias voltage | Vof | +2.5V | +2.5V or Vref_in | ||||
| Saturation current | Ipmax | ≧ If * 3 | |||||
| Reference I / O function | No | Yes | |||||
| Surge current capacity | - | Up | - | Up | - | Up | |
| Number of primary side buses | 3pcs | 4pcs | |||||
|
Primary side - secondary side
Insulation distance (creepage, space)
|
7.7mm | 7.5mm | 8.2mm | ||||
＜Q&A>
Q. About reference I / O function
A. This product group generates a reference voltage of 2.5V internally, which is basically centered on the reference voltage of 2.5V.
F02p and F03p series are equipped with VREF terminal (in & out), which can be used as the reference voltage output by current sensor, or the reference voltage can be changed by applying external voltage.
If no connection is made, it will work with 2.5V as the center like F01P050S05 in the above example.
For example, if F01P050S05
Ip＝0A …Vo＝2.5V （＝2.5V＋0A×sensitivity12.5mV／A）
Ip＝50A …Vo＝3.125V （＝2.5V＋50A×sensitivity12.5mV／A）
For example, if F02P050S05
Vref＝OPEN Ip＝50A …Vo＝3.125V（＝2.5V＋50A×sensitivity12.5mV／A）※Ref-OUT pattern
Vref＝0V Ip＝50A …Vo＝0.625V（＝0V＋50A×sensitivity12.5mV／A） ※Ref-IN pattern
Vref＝4V Ip＝50A …Vo＝4.625V（＝4V＋50A×sensitivity12.5mV／A） ※Ref-IN pattern
Q. About the recommended output circuit
A. Although there is no special provision, since the output voltage contains a ripple of about 450kHZ, please take measures such as installing capacitors according to the actual situation.
(450kHZ: oscillation frequency typ value of internal circuit)
Q. About the current rating specification of winding and wiring on the primary side
A. The rated specification of winding wiring (wiring diagram if / 3, if / 2) is considered by magnetomotive force at (ampere turn).
The product adopts the rated current if (a) × Design based on 1 turn of primary conductor (= magnetomotive force).
In case of 50A product
①50A × 1T ②25A × 2T ③16.67A × 3T
Under the condition of ≈ 50AT, the output voltage Vo ≈ 3.125v (rated output).
Therefore, when using 3 turns of conductor on the primary side for 50A products, please take if / 3 ≈ 16.67a as the reference of rated specification.。
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